In a triangle, the nomenclature is that a variable side a is opposite of the angle A. we can use the cosine law to determine the value of cosine A.
a2 = b2 + c2 -2bc cos a25 = 36 + 64 - 2*6*8 * cos acos a = 25/32
Answer:
-1 1/2
Step-by-step explanation:
The correct answer is C. n is greater than or equal to 30
Answer:
The Answer to your question is x<-7 Hope This could Help
Step-by-step explanation:
Answer:
step 1. you see in the problem x = 6y + 9 substitue the equation for the x variable in the first equation. so it will be 2(6y+9) - 12y = 7
step 2. solve for y. butttt in this case it looks like it can't be solved .
Step-by-step explanation:
option 3. in the steps i provided substituted x for x equals 6y + 9 which leads you to solve y. if you want you can rearrange 2x-12y=7 to solve for y so it would be 7-2x/-12 = 7
